Porsche 911 vs Porsche 918 Spyder Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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2021 Porsche 911 Carrera 4 Cabriolet AWD

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2015 Porsche 918 Spyder Roadster

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User Ranking Drivers and owners ranked these cars in 9 categories.

#2
Best 2021 Luxury Convertibles
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Based on 3 rankings.
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Best 2015 Luxury Convertibles
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Used Car Pricing Used listing price comparison and analysis.

2021 Porsche 911
Carrera 4 Cabriolet AWD
CarGurus Instant Market Value
$119,300

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2015 Porsche 918 Spyder
Roadster
CarGurus Instant Market Value
$845,000
3 listings nationwide

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Expert Reviews Reviews from CarGurus experts.

2021 Porsche 911
Carrera 4 Cabriolet AWD
Josh Jacquot Preview:

Entering its second year in the 992 generation, Porsche’s iconic 911 remains one of the most versatile and daily drivable sports cars ever made. Its trims and drive configurations enco...

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2015 Porsche 918 Spyder
Roadster
John Goreham Preview:

Porsche did not need to use a hybrid electric drive system in the 918 Spyder hypercar. The automaker could have set the track record at the famous Nurburgring without using two electri...

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User Reviews Reviews from CarGurus users who have driven or owned the car.

2021 Porsche 911
Carrera 4 Cabriolet AWD
No User Reviews
2015 Porsche 918 Spyder
Roadster
125
drgoodwrench writes:
Wicked fun to drive at Laguna Seca, not sure I could handle is as a daily driver..mostly due to all the rice r...
Full review »

Specs

2021 Porsche 911
Carrera 4 Cabriolet AWD
2015 Porsche 918 Spyder
Roadster
Powertrain 8-Speed Dual Clutch 7-Speed Dual Clutch
Drivetrain
AWD
AWD
Fuel Economy, City
--
20 MPG
Fuel Economy, Highway
--
24 MPG
Fuel Tank Volume 17.6 gal 18.5 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
379 hp @ 6,500 RPM
887 hp @ 8,700 RPM
Torque
331 lb-ft @ 1,950 RPM
944 lb-ft @ 6,600 RPM
Cylinders
6 cylinders
8 cylinders
Compression Ratio
10.2:1
9.8:1
Displacement
3,000 cc
4,600 cc
Bore x Stroke
3.58 in x 3.01 in
3.74 in x 3.19 in
Safety
ABS Brakes Standard Standard
Driver Airbag Standard Standard
Passenger Airbag Standard Standard
Front Side Airbags -- Standard
NHTSA Crash Test Results
Comfort and Convenience
Leather Seats -- Standard
Air Conditioning Standard Standard
CD Player -- Standard
Radio Standard Standard
Power Windows Standard Standard
Power Door Locks Standard Standard
Driver Power Seats Standard Standard
Passenger Power Seats Standard Standard
Interior
Maximum Seating 4 seats 2 seats
Front Legroom -- --
Back Legroom -- --
Payload and Towing
Cargo Volume 4.6 cu ft 3.7 cu ft
Maximum Payload 883 lbs --
Exterior
Length 177.9 in 182.8 in
Width 79.7 in 76.4 in
Height 51.1 in 45.9 in
Wheelbase 96.5 in 107.5 in

Available Options

2021 Porsche 911
Carrera 4 Cabriolet AWD
2015 Porsche 918 Spyder
Roadster

Exterior Colors

  • Basalt Black Metallic
  • Black
  • Custom Color Uni
  • Dark Blue Metallic
  • GT Silver Metallic
  • Guards Red
  • Leather In Custom Color
  • Liquid Metal Chrome Blue
  • Liquid Metal Silver
  • Meteor Gray Metallic
  • Racing Yellow
  • Rhodium Silver Metallic
  • Sapphire Blue Metallic
  • White

Option Packages

  • Lifting System Front Axle
  • Carbon FLOORMAT W/Acid Green Piping
  • Carbon FLOORMAT W/Orange Piping
  • Carbon FLOORMAT W/Silver Piping
  • Electric Comfort Heating
  • Factory Collection Leipzig
  • Factory Collection Zuffenhausen
  • Interior Package Carbon
  • Painted Key W/Leather Key Pouch
  • Seat Belts W/Accent Stripes Acid Green
  • Seat Belts W/Accent Stripes Orange
  • Seat Belts W/Accent Stripes Silver
  • MOCCA Brown/Orange, Authentic Leather Trim
  • MOCCA Brown/Silver, Authentic Leather Trim
  • Onyx Black/Acid Green, Authentic Leather Trim
  • Onyx Black/Silver, Authentic Leather Trim
  • Wheel: 20" F & 21" R 918 SPYDER Painted Platinum
  • Wheel: 20" Front & 21" Rear 918 SPYDER Magnesium

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